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/*
* Copyright (c) 2009-2018, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
//!
//! \file cp_utils.cpp
//! \brief Implement of CPLibUtils to interact with CPLib
//!
#include "cplib_utils.h"
#include "mos_utilities.h"
std::unordered_map<const char*, void*> CPLibUtils::m_symbols;
std::mutex CPLibUtils::m_referenceMutex;
int CPLibUtils::m_referenceCount = 0;
void * CPLibUtils::m_phandle = nullptr;
const char *CPLibUtils::CPLIB_PATH = "cplib.so";
const char *CPLibUtils::FUNC_INIT_CPLIB = "Init_CPLib";
const char *CPLibUtils::FUNC_RELEASE_CPLIB = "Release_CPLib";
const char *CPLibUtils::FUNC_GET_CPLIB_MAJOR_VERSION = "Get_CPLib_Major_Version";
const char *CPLibUtils::FUNC_CREATE_DDICP = "Create_DdiCp";
const char *CPLibUtils::FUNC_DELETE_DDICP = "Delete_DdiCp";
const char *CPLibUtils::FUNC_CREATE_MHWCP = "Create_MhwCp";
const char *CPLibUtils::FUNC_DELETE_MHWCP = "Delete_MhwCp";
const char *CPLibUtils::FUNC_CREATE_MOSCP = "Create_MosCp";
const char *CPLibUtils::FUNC_DELETE_MOSCP = "Delete_MosCp";
const char *CPLibUtils::FUNC_CREATE_MEDIALIBVACAPSCP = "Create_MediaLibvaCapsCp";
const char *CPLibUtils::FUNC_DELETE_MEDIALIBVACAPSCP = "Delete_MediaLibvaCapsCp";
const char *CPLibUtils::FUNC_CREATE_SECUREDECODE = "Create_SecureDecode";
const char *CPLibUtils::FUNC_DELETE_SECUREDECODE = "Delete_SecureDecode";
const char *CPLibUtils::FUNC_CREATE_DECODECP = "Create_DecodeCp";
const char *CPLibUtils::FUNC_DELETE_DECODECP = "Delete_DecodeCp";
const char *CPLibUtils::FUNC_CREATE_CPSTREAMOUT = "Create_CpStreamOut";
const char *CPLibUtils::FUNC_DELETE_CPSTREAMOUT = "Delete_CpStreamOut";
bool CPLibUtils::LoadCPLib(VADriverContextP ctx)
{
m_referenceMutex.lock();
m_phandle = dlopen(CPLIB_PATH, RTLD_NOW | RTLD_LOCAL);
if(nullptr == m_phandle)
{
CPLIB_ASSERTMESSAGE("Failed to open %s %s", CPLIB_PATH, dlerror());
m_referenceMutex.unlock();
return false;
}
else
{
++m_referenceCount;
if(1 == m_referenceCount)
{
m_symbols.clear();
m_symbols[FUNC_GET_CPLIB_MAJOR_VERSION] = dlsym(m_phandle, FUNC_GET_CPLIB_MAJOR_VERSION);
m_symbols[FUNC_INIT_CPLIB] = dlsym(m_phandle, FUNC_INIT_CPLIB);
m_symbols[FUNC_RELEASE_CPLIB] = dlsym(m_phandle, FUNC_RELEASE_CPLIB);
m_symbols[FUNC_CREATE_DDICP] = dlsym(m_phandle, FUNC_CREATE_DDICP);
m_symbols[FUNC_DELETE_DDICP] = dlsym(m_phandle, FUNC_DELETE_DDICP);
m_symbols[FUNC_CREATE_MHWCP] = dlsym(m_phandle, FUNC_CREATE_MHWCP);
m_symbols[FUNC_DELETE_MHWCP] = dlsym(m_phandle, FUNC_DELETE_MHWCP);
m_symbols[FUNC_CREATE_MOSCP] = dlsym(m_phandle, FUNC_CREATE_MOSCP);
m_symbols[FUNC_DELETE_MOSCP] = dlsym(m_phandle, FUNC_DELETE_MOSCP);
m_symbols[FUNC_CREATE_MEDIALIBVACAPSCP] = dlsym(m_phandle, FUNC_CREATE_MEDIALIBVACAPSCP);
m_symbols[FUNC_DELETE_MEDIALIBVACAPSCP] = dlsym(m_phandle, FUNC_DELETE_MEDIALIBVACAPSCP);
m_symbols[FUNC_CREATE_SECUREDECODE] = dlsym(m_phandle, FUNC_CREATE_SECUREDECODE);
m_symbols[FUNC_DELETE_SECUREDECODE] = dlsym(m_phandle, FUNC_DELETE_SECUREDECODE);
m_symbols[FUNC_CREATE_DECODECP] = dlsym(m_phandle, FUNC_CREATE_DECODECP);
m_symbols[FUNC_DELETE_DECODECP] = dlsym(m_phandle, FUNC_DELETE_DECODECP);
m_symbols[FUNC_CREATE_CPSTREAMOUT] = dlsym(m_phandle, FUNC_CREATE_CPSTREAMOUT);
m_symbols[FUNC_DELETE_CPSTREAMOUT] = dlsym(m_phandle, FUNC_DELETE_CPSTREAMOUT);
// confirm if all symbols exported from CPLIB are exist
for(auto item : m_symbols)
{
if(nullptr == item.second)
{
CPLIB_ASSERTMESSAGE("Symbol: %s not found in CPLIB", item.first);
m_referenceMutex.unlock();
UnloadCPLib(ctx);
return false;
}
}
using FuncTypeGetVersion = uint32_t (*)();
FuncTypeGetVersion func = reinterpret_cast<FuncTypeGetVersion>(m_symbols[FUNC_GET_CPLIB_MAJOR_VERSION]);
if(REQUIRED_CPLIB_MAJOR_VERSION != func())
{
CPLIB_ASSERTMESSAGE("The CPLIB version does not meet the require");
m_referenceMutex.unlock();
UnloadCPLib(ctx);
return false;
}
}
using FuncTypeInitCplib = bool (*)(VADriverContextP ctx);
bool initialized = false;
InvokeCpFunc<FuncTypeInitCplib>(initialized, FUNC_INIT_CPLIB, ctx);
if (!initialized)
{
CPLIB_ASSERTMESSAGE("Failed to initialized CPLIB");
m_referenceMutex.unlock();
UnloadCPLib(ctx);
return false;
}
}
m_referenceMutex.unlock();
CPLIB_NORMALMESSAGE("CPLIB Loaded Successfully");
return true;
}
void CPLibUtils::UnloadCPLib(VADriverContextP ctx)
{
m_referenceMutex.lock();
--m_referenceCount;
if(m_referenceCount < 0)
{
CPLIB_ASSERTMESSAGE("Invalid m_referenceCount");
m_referenceMutex.unlock();
return;
}
if(m_symbols.empty())
{
CPLIB_ASSERTMESSAGE("m_symbols is empty");
m_referenceMutex.unlock();
return;
}
using FuncType = void (*)(VADriverContextP ctx);
InvokeCpFunc<FuncType>(FUNC_RELEASE_CPLIB, ctx);
if((0 == m_referenceCount) && (nullptr != m_phandle))
{
m_symbols.clear();
if(0 != dlclose(m_phandle)) // dlclose will return 0 if execution sucecceed
CPLIB_ASSERTMESSAGE("Failed to close CPLIB %s", dlerror());
}
m_referenceMutex.unlock();
}
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